Panasonic GX850 vs Pentax K-3 III
The Panasonic Lumix DMC-GX850 (called Panasonic GX800 in some regions) and the Pentax K-3 III are two digital cameras that were officially introduced, respectively, in January 2017 and March 2021. The GX850 is a mirrorless interchangeable lens camera, while the K-3 III is a DSLR. The cameras are based on a Four Thirds (GX850) and an APS-C (K-3 III) sensor. The Panasonic has a resolution of 15.8 megapixels, whereas the Pentax provides 25.6 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-GX850 and the Pentax K-3 III? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
Body comparison
The physical size and weight of the Panasonic GX850 and the Pentax K-3 III are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.
The GX850 can be obtained in three different colors (black, silver, red), while the K-3 III is available in two color-versions (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 III is considerably larger (102 percent) than the Panasonic GX850. Moreover, the K-3 III is substantially heavier (205 percent) than the GX850. It is noteworthy in this context that the K-3 III is splash and dust-proof, while the GX850 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
Concerning battery life, the GX850 gets 210 shots out of its Panasonic DMW-BLH7 battery, while the K-3 III can take 800 images on a single charge of its Pentax D-LI90 power pack.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Panasonic GX850 | 107 mm | 65 mm | 33 mm | 269 g | 210 | n | Jan 2017 | US$ 549 | ebay.com | |
2. | Pentax K-3 III | 135 mm | 104 mm | 74 mm | 820 g | 800 | Y | Mar 2021 | US$ 1 999 | amazon.com | |
3. | Fujifilm X-H1 | 140 mm | 97 mm | 86 mm | 673 g | 310 | Y | Feb 2018 | US$ 1 899 | ebay.com | |
4. | Olympus E-PL5 | 111 mm | 64 mm | 38 mm | 325 g | 360 | n | Sep 2012 | US$ 599 | ebay.com | |
5. | Olympus E-PM2 | 110 mm | 64 mm | 34 mm | 269 g | 360 | n | Sep 2012 | US$ 499 | ebay.com | |
6. | Panasonic G3 | 115 mm | 84 mm | 47 mm | 336 g | 270 | n | May 2011 | US$ 599 | ebay.com | |
7. | Panasonic G5 | 120 mm | 83 mm | 71 mm | 396 g | 320 | n | Jul 2012 | US$ 599 | ebay.com | |
8. | Panasonic G6 | 122 mm | 85 mm | 71 mm | 390 g | 340 | n | Apr 2013 | US$ 599 | ebay.com | |
9. | Panasonic GF3 | 108 mm | 67 mm | 32 mm | 264 g | 300 | n | Jun 2011 | US$ 549 | ebay.com | |
10. | Panasonic GF5 | 108 mm | 67 mm | 37 mm | 267 g | 360 | n | Apr 2012 | US$ 499 | ebay.com | |
11. | Panasonic GF6 | 111 mm | 65 mm | 38 mm | 323 g | 340 | n | Apr 2013 | US$ 499 | ebay.com | |
12. | Panasonic GF7 | 107 mm | 65 mm | 33 mm | 266 g | 230 | n | Jan 2015 | US$ 499 | ebay.com | |
13. | Panasonic GX1 | 116 mm | 68 mm | 39 mm | 318 g | 320 | n | Nov 2011 | US$ 699 | ebay.com | |
14. | Pentax K-3 | 131 mm | 100 mm | 77 mm | 800 g | 560 | Y | Oct 2013 | US$ 1 299 | ebay.com | |
15. | Pentax K-3 II | 131 mm | 100 mm | 77 mm | 800 g | 720 | Y | Apr 2015 | US$ 1 099 | ebay.com | |
16. | Pentax K-70 | 126 mm | 93 mm | 74 mm | 688 g | 410 | Y | Jun 2016 | US$ 649 | ebay.com | |
17. | Pentax KP | 132 mm | 101 mm | 76 mm | 703 g | 390 | Y | Jan 2017 | US$ 1 099 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
Any camera decision will obviously take relative prices into account. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The GX850 was launched at a markedly lower price (by 73 percent) than the K-3 III, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.
Sensor comparison
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Panasonic GX850 features a Four Thirds sensor and the Pentax K-3 III an APS-C sensor. The sensor area in the K-3 III is 60 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.5. The sensor in the GX850 has a native 4:3 aspect ratio, while the one in the K-3 III offers a 3:2 aspect.
With 25.6MP, the K-3 III offers a higher resolution than the GX850 (15.8MP), but the K-3 III has marginally smaller individual pixels (pixel pitch of 3.76μm versus 3.77μm for the GX850). Yet, the K-3 III is a much more recent model (by 4 years and 2 months) than the GX850, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The resolution advantage of the Pentax K-3 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-3 III for good quality output (200 dots per inch) amounts to 31 x 20.6 inches or 78.6 x 52.4 cm, for very good quality (250 dpi) 24.8 x 16.5 inches or 62.9 x 41.9 cm, and for excellent quality (300 dpi) 20.6 x 13.8 inches or 52.4 x 35 cm. The corresponding values for the Panasonic GX850 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.
Unlike the GX850, the K-3 III has the capacity to capture high quality composite images (YESMP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Panasonic Lumix DMC-GX850 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Pentax K-3 III are ISO 100 to ISO 160000 (no boost).
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Panasonic GX850 | Four Thirds | 15.8 | 4592 | 3448 | 4K/30p | 23.2 | 13.3 | 586 | 73 | |
2. | Pentax K-3 III | APS-C | 25.6 | 6192 | 4128 | 4K/30p | 24.2 | 13.7 | 2083 | 85 | |
3. | Fujifilm X-H1 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 24.0 | 13.3 | 1806 | 82 | |
4. | Olympus E-PL5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.3 | 889 | 72 | |
5. | Olympus E-PM2 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.7 | 12.2 | 932 | 72 | |
6. | Panasonic G3 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60i | 21.0 | 10.6 | 667 | 56 | |
7. | Panasonic G5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 21.4 | 11.6 | 618 | 61 | |
8. | Panasonic G6 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 21.3 | 11.5 | 639 | 61 | |
9. | Panasonic GF3 | Four Thirds | 12.0 | 4000 | 3000 | 1080/60i | 20.6 | 10.1 | 459 | 50 | |
10. | Panasonic GF5 | Four Thirds | 12.0 | 4000 | 3000 | 1080/60i | 20.5 | 10.0 | 573 | 50 | |
11. | Panasonic GF6 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60i | 20.7 | 10.6 | 622 | 54 | |
12. | Panasonic GF7 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60p | 22.7 | 12.3 | 874 | 70 | |
13. | Panasonic GX1 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60p | 20.8 | 10.6 | 703 | 55 | |
14. | Pentax K-3 | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.7 | 13.4 | 1216 | 80 | |
15. | Pentax K-3 II | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.6 | 13.6 | 1106 | 80 | |
16. | Pentax K-70 | APS-C | 24.0 | 6000 | 4000 | 1080/60i | 23.8 | 13.1 | 1639 | 80 | |
17. | Pentax KP | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.9 | 13.2 | 1699 | 81 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (4K/30p).
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. For example, the K-3 III has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the GX850 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Panasonic GX850 and Pentax K-3 III along with similar information for a selection of comparators.
Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Panasonic GX850 | none | n | 3.0 / 1040 | tilting | Y | 1/500s | 10.0/s | Y | n | |
2. | Pentax K-3 III | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 12.0/s | n | Y | |
3. | Fujifilm X-H1 | 3690 | Y | 3.0 / 1040 | full-flex | Y | 1/8000s | 14.0/s | n | Y | |
4. | Olympus E-PL5 | optional | n | 3.0 / 460 | tilting | Y | 1/4000s | 8.0/s | n | Y | |
5. | Olympus E-PM2 | optional | n | 3.0 / 460 | fixed | Y | 1/4000s | 8.0/s | n | Y | |
6. | Panasonic G3 | 1440 | n | 3.0 / 460 | swivel | Y | 1/4000s | 4.0/s | Y | n | |
7. | Panasonic G5 | 1440 | n | 3.0 / 920 | swivel | Y | 1/4000s | 6.0/s | Y | n | |
8. | Panasonic G6 | 1440 | n | 3.0 / 1036 | swivel | Y | 1/4000s | 7.0/s | Y | n | |
9. | Panasonic GF3 | none | n | 3.0 / 460 | fixed | Y | 1/4000s | 3.2/s | Y | n | |
10. | Panasonic GF5 | none | n | 3.0 / 920 | fixed | Y | 1/4000s | 4.0/s | Y | n | |
11. | Panasonic GF6 | none | n | 3.0 / 1040 | tilting | Y | 1/4000s | 4.2/s | Y | n | |
12. | Panasonic GF7 | none | n | 3.0 / 1040 | tilting | Y | 1/500s | 5.8/s | Y | n | |
13. | Panasonic GX1 | optional | n | 3.0 / 460 | fixed | Y | 1/4000s | 4.2/s | Y | n | |
14. | Pentax K-3 | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | Y | Y | |
15. | Pentax K-3 II | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | n | Y | |
16. | Pentax K-70 | optical | n | 3.0 / 921 | swivel | n | 1/6000s | 6.0/s | Y | Y | |
17. | Pentax KP | optical | n | 3.0 / 921 | tilting | n | 1/6000s | 7.0/s | Y | Y | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One difference between the cameras concerns the presence of an on-board flash. The GX850 has one, while the K-3 III does not. While the built-in flash of the GX850 is not very powerful, it can at times be useful as a fill-in light.
The GX850 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the K-3 III does not have a selfie-screen.The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the GX850 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The Panasonic GX850 and the Pentax K-3 III both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
Concerning the storage of imaging data, both the GX850 and the K-3 III write their files to SDXC cards. The K-3 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the GX850 only has one slot. The K-3 III supports UHS-II cards (on its first slot), while the GX850 can use UHS-I cards.
Connectivity comparison
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Panasonic Lumix DMC-GX850 and Pentax K-3 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Panasonic GX850 | - | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
2. | Pentax K-3 III | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
3. | Fujifilm X-H1 | Y | stereo / mono | Y | - | micro | 3.0 | Y | - | - | |
4. | Olympus E-PL5 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
5. | Olympus E-PM2 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
6. | Panasonic G3 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
7. | Panasonic G5 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
8. | Panasonic G6 | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
9. | Panasonic GF3 | - | stereo / mono | - | - | mini | 2.0 | - | - | - | |
10. | Panasonic GF5 | - | stereo / mono | - | - | mini | 2.0 | - | - | - | |
11. | Panasonic GF6 | - | stereo / mono | - | - | mini | 2.0 | Y | Y | - | |
12. | Panasonic GF7 | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
13. | Panasonic GX1 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
14. | Pentax K-3 | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
15. | Pentax K-3 II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
16. | Pentax K-70 | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
17. | Pentax KP | Y | stereo / mono | Y | - | - | 2.0 | Y | - | - |
It is notable that the K-3 III has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The GX850 lacks such a headphone port.
Studio photographers will appreciate that the Pentax K-3 III (unlike the GX850) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Travel and landscape photographers will find it useful that the K-3 III has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The K-3 III is a recent model that features in the current product line-up of Pentax. In contrast, the GX850 has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the GX850 from Panasonic. Further information on the features and operation of the GX850 and K-3 III can be found, respectively, in the Panasonic GX850 Manual (free pdf) or the online Pentax K-3 III Manual.
Review summary
So how do things add up? Which of the two cameras – the Panasonic GX850 or the Pentax K-3 III – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Panasonic Lumix DMC-GX850:
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More compact: Is smaller (107x65mm vs 135x104mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 551g or 67 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (73 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in January 2017).
Advantages of the Pentax K-3 III:
- More detail: Has more megapixels (25.6 vs 15.8MP), which boosts linear resolution by 30%.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1620k vs 1040k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/500s) to freeze action.
- Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (800 versus 210) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More modern: Reflects 4 years and 2 months of technical progress since the GX850 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the K-3 III is the clear winner of the contest (25 : 9 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Panasonic GX850 and the Pentax K-3 III place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the GX850 or the K-3 III. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
Expert reviews
This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Panasonic GX850 | .. | + | .. | 76/100 | 4.5/5 | 4.5/5 | Jan 2017 | US$ 549 | ebay.com | |
2. | Pentax K-3 III | 4/5 | .. | 3/5 | .. | 4.5/5 | .. | Mar 2021 | US$ 1 999 | amazon.com | |
3. | Fujifilm X-H1 | .. | + | 5/5 | 86/100 | 4.5/5 | 4.5/5 | Feb 2018 | US$ 1 899 | ebay.com | |
4. | Olympus E-PL5 | 3/5 | + + | .. | .. | 4.5/5 | 4.5/5 | Sep 2012 | US$ 599 | ebay.com | |
5. | Olympus E-PM2 | 3/5 | .. | .. | 77/100 | 5/5 | 4.5/5 | Sep 2012 | US$ 499 | ebay.com | |
6. | Panasonic G3 | 3/5 | + + | .. | 75/100 | 4.5/5 | 5/5 | May 2011 | US$ 599 | ebay.com | |
7. | Panasonic G5 | 3/5 | + + | .. | .. | 4.5/5 | 4.5/5 | Jul 2012 | US$ 599 | ebay.com | |
8. | Panasonic G6 | 4/5 | + + | .. | .. | 5/5 | 4.5/5 | Apr 2013 | US$ 599 | ebay.com | |
9. | Panasonic GF3 | 3/5 | 82/100 | .. | 71/100 | 4.5/5 | 4/5 | Jun 2011 | US$ 549 | ebay.com | |
10. | Panasonic GF5 | 3/5 | .. | .. | .. | 4.5/5 | 4.5/5 | Apr 2012 | US$ 499 | ebay.com | |
11. | Panasonic GF6 | .. | + + | .. | .. | 4.5/5 | 4.5/5 | Apr 2013 | US$ 499 | ebay.com | |
12. | Panasonic GF7 | 4/5 | + | .. | .. | 4.5/5 | 4.5/5 | Jan 2015 | US$ 499 | ebay.com | |
13. | Panasonic GX1 | 3/5 | + | .. | 77/100 | 4.5/5 | 4.5/5 | Nov 2011 | US$ 699 | ebay.com | |
14. | Pentax K-3 | 4/5 | .. | .. | 83/100 | 5/5 | 5/5 | Oct 2013 | US$ 1 299 | ebay.com | |
15. | Pentax K-3 II | 4.5/5 | .. | .. | .. | 5/5 | 5/5 | Apr 2015 | US$ 1 099 | ebay.com | |
16. | Pentax K-70 | 4.5/5 | .. | 4/5 | 79/100 | 4.5/5 | 4.5/5 | Jun 2016 | US$ 649 | ebay.com | |
17. | Pentax KP | 4/5 | .. | 3/5 | 82/100 | 5/5 | 4.5/5 | Jan 2017 | US$ 1 099 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
Other camera comparisons
Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 5D Mark II vs Panasonic GX850
- Fujifilm X-Pro3 vs Panasonic GX850
- Leica C-LUX vs Panasonic GX850
- Nikon W300 vs Panasonic GX850
- Olympus E-M1X vs Pentax K-3 III
- Panasonic G7 vs Panasonic GX850
- Panasonic GH6 vs Pentax K-3 III
- Panasonic GX850 vs Pentax K-70
- Pentax K-3 III vs Pentax K-S1
- Pentax K-3 III vs Sony A9 III
- Pentax K-3 III vs Sony a7R V
- Pentax K-3 vs Pentax K-3 III
Specifications: Panasonic GX850 vs Pentax K-3 III
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
Camera Model | Panasonic GX850 | Pentax K-3 III |
---|---|---|
Camera Type | Mirrorless system camera | Digital single lens reflex |
Camera Lens | Micro Four Thirds lenses | Pentax K mount lenses |
Launch Date | January 2017 | March 2021 |
Launch Price | USD 549 | USD 1,999 |
Sensor Specs | Panasonic GX850 | Pentax K-3 III |
Sensor Technology | CMOS | CMOS |
Sensor Format | Four Thirds Sensor | APS-C Sensor |
Sensor Size | 17.3 x 13.0 mm | 23.3 x 15.5 mm |
Sensor Area | 224.9 mm2 | 361.15 mm2 |
Sensor Diagonal | 21.6 mm | 28 mm |
Crop Factor | 2.0x | 1.5x |
Sensor Resolution | 15.8 Megapixels | 25.6 Megapixels |
Image Resolution | 4592 x 3448 pixels | 6192 x 4128 pixels |
Pixel Pitch | 3.77 μm | 3.76 μm |
Pixel Density | 7.04 MP/cm2 | 7.08 MP/cm2 |
Moiré control | no AA filter | no AA filter |
Movie Capability | 4K/30p Video | 4K/30p Video |
ISO Setting | 200 - 25,600 ISO | 100 - 160,000 ISO |
ISO Boost | 100 - 25,600 ISO | no Enhancement |
Image Processor | Venus | PRIME V |
DXO Sensor Quality (score) | 73 | .. |
DXO Color Depth (bits) | 23.2 | .. |
DXO Dynamic Range (EV) | 13.3 | .. |
DXO Low Light (ISO) | 586 | .. |
Screen Specs | Panasonic GX850 | Pentax K-3 III |
Viewfinder Type | no viewfinder | Optical viewfinder |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.70x | |
Top-Level Screen | no Top Display | Control Panel |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.2inch |
LCD Resolution | 1040k dots | 1620k dots |
LCD Attachment | Tilting screen | Fixed screen |
Touch Input | Touchscreen | Touchscreen |
Shooting Specs | Panasonic GX850 | Pentax K-3 III |
Focus System | Contrast-detect AF | Phase-detect AF |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/500s | 1/8000s |
Continuous Shooting | 10 shutter flaps/s | 12 shutter flaps/s |
Electronic Shutter | up to 1/16000s | no E-Shutter |
Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
Image Stabilization | Lens stabilization only | In-body stabilization |
Fill Flash | Built-in Flash | no On-Board Flash |
Storage Medium | SDXC cards | SDXC cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
UHS card support | UHS-I | Single UHS-II |
Connectivity Specs | Panasonic GX850 | Pentax K-3 III |
External Flash | no Hotshoe | Hotshoe |
Studio Flash | no PC Sync | PC Sync socket |
USB Connector | USB 2.0 | USB 3.2 |
HDMI Port | micro HDMI | micro HDMI |
Microphone Port | no MIC socket | External MIC port |
Headphone Socket | no Headphone port | Headphone port |
Wifi Support | Wifi built-in | Wifi built-in |
Bluetooth Support | no Bluetooth | Bluetooth built-in |
Geotagging | no internal GPS | GPS built-in |
Body Specs | Panasonic GX850 | Pentax K-3 III |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Panasonic DMW-BLH7 | Pentax D-LI90 |
Battery Life (CIPA) | 210 shots per charge | 800 shots per charge |
Body Dimensions |
107 x 65 x 33 mm (4.2 x 2.6 x 1.3 in) |
135 x 104 x 74 mm (5.3 x 4.1 x 2.9 in) |
Camera Weight | 269 g (9.5 oz) | 820 g (28.9 oz) |
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